Here is a quick guide.
Bilsteins: Bump stop internal.
There is a special tool. Some use pipe wrenches link below shows special
tool.
Clunking should end when you can tighten to 140 ft lbs.
http://www.avacationhomerental.com/MPTSAudiFansBilsteinGallery.htm
(Scroll all the way down. The second to last photo is impiotrant click to
enlarge.)
Did you replace the upper strut bearing?
That will clunk too.
-SCott in BOSTON